Note: Descriptions are shown in the official language in which they were submitted.
ENVIRONMENTAL FRIENDLY DETERGENT TABLET, AND PREPARATION
METHOD AND TABLETING EQUIPMENT THEREOF
TECHNICAL FIELD
[0001] The present application relates to the technical field of washing
products, and particularly
to an environmental friendly detergent tablet, and preparation method and
tableting equipment
thereof.
BACKGROUND ART
[0002] Detergent is an indispensable household washing product in people's
daily life. In recent
years, great changes have taken place in the dosage form. The concentration of
detergent is more
and more favored by the industry and the consumers, such as concentrated
liquid and concentrated
laundry pods. In particular, in recent years, the solid sheet-shaped detergent
tablet have gradually
attracted the attention of domestic and foreign consumers due to its
portability. Most of the
detergent tablet are solid sheets prepared by using polyvinyl alcohol as film-
forming agent, melting
and mixing polyvinyl alcohol, water and surfactant, and then drying.
[0003] Due to the increasing environmental protection requirements in various
countries to
adapt sustainable development in the future, some foreign countries and
regions require that the
biodegradation rate of detergent products should reach 60% or more within 28
days. Because
polyvinyl alcohol has lower degradability and longer biodegradation time, and
usually begins to
decompose slowly after one year, adding too much polyvinyl alcohol into the
detergent tablet will
impair the biodegradability of the product itself, such that the product would
not meet the
requirements of biodegradation within 28 days.
[0004] However, when the amount of polyvinyl alcohol added is too small, there
will exist
problem that the detergent tablet cannot be formed as tablet and are unstable.
For example, the
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detergent tablets are easy to break in winter and are easy to stick together
in summer, resulting in
product quality problems.
SUMMARY
[0005] In order to shorten the degradation period of the detergent tablet, and
meanwhile ensure
the quality of the detergent tablet, the present application provides an
environmental friendly
detergent tablet, and a preparation method and a tableting equipment thereof.
[0006] In a first aspect, the present application provides an environmental
friendly detergent
tablet, which adopts the following technical solution:
an environmental friendly detergent tablet including the following by weight
percentage:
polyvinyl alcohol 4%-17%;
film-forming agent 1%-5%;
surfactant 20%-50%;
plant starch 20%-50%;
cosolvent 1%-12%;
enzyme 0.1%-1%;
water softener 1%-7%; and
other additives 0-1%;
the polyvinyl alcohol has an average polymerization degree of 1700-2700 and an
average
molecular weight of 84000-130000 Da.
[0007] In some embodiments, the polyvinyl alcohol has an average
polymerization degree of
2300-2500 and an average molecular weight of 111000-124000 Da.
[0008] In the above technical solution, high molecular weight polyvinyl
alcohol and plant starch
are used to cooperate with each other, so as to obtain an detergent tablet
with good stability, good
biodegradability and high detergency.
[0009] Taking advantage of the high molecular weight characteristics of
polyvinyl alcohol, the
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viscosity of the detergent tablet is increased, which helps the degradable
surfactant be stably exist
in the detergent tablet. Moreover, the exist of high molecular weight
polyvinyl alcohol obviously
improves the compatibility of the plant starch in the detergent tablet system,
so more plant starch
can be added to the detergent tablet system. Further, the plant starch can rub
the stains on the
clothes, and help peel off the stains, thereby assisting washing. Therefore,
the addition of plant
starch can not only improve the washing ability of the detergent tablet, but
also replace part of
polyvinyl alcohol, thereby reducing the amount of polyvinyl alcohol. In
addition, the plant starch
itself is easy to degrade, so the biodegradability of the detergent tablet is
greatly improved.
[0010] In the present application, the bio-enzyme formulation is added by
normal temperature
process, so that the activity of the bio-enzyme formulation is not affected by
the high temperature,
and the decontamination effect is maximized. The bio-enzyme formulation can
make the protein
and other high molecular compounds in the dirt of the fabric decompose into
small molecular
substances such as soluble amino acids to improve the decontamination ability.
[0011] In addition, the addition of plant starch can reduce the moisture
content of the detergent
tablet after drying. The bio-enzyme formulation contains solvent, and the
plant starch can reduce
the impact of moisture caused by the addition of bio-enzyme formulation after
the drying of the
detergent tablet. Therefore, the detergent tablet can be packed in plastic
free cartons, which is more
accord with the concept of low-carbon environmental protection.
[0012] In some embodiments, a weight ratio of the polyvinyl alcohol to the
plant starch is 1:
(1.5-3).
[0013] In the above technical solution, the polyvinyl alcohol and the plant
starch are mixed
according to the above ratio range, and a good improvement effect is obtained
in terms of
degradation rate and detergency.
[0014] In some embodiments, the plant starch has a whiteness value of 84-93%
and a moisture
content of 7-15%, in which the moisture content is calculated by weight.
[0015] In the above technical solution, the plant starch with whiteness value
in the above range
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has good detergency, and the plant starch with moisture content in the above
range is not easy to
impair the stability of the detergent tablet, so that the detergent tablet has
better comprehensive
performance.
[0016] In some embodiments, the plant starch is one or more selected from a
group consisting
of mung bean starch, potato starch, sweet potato starch, corn starch, tapioca
starch and pea starch.
[0017] In some embodiments, the plant starch is selected from a group
consisting of pea starch,
potato starch and corn starch; a weight percentage of the pea starch in the
initial materials is 10%-
20%, a weight percentage of the corn starch in the initial materials is 10%-
20%, and a weight
percentage of the potato starch in the initial materials is 0-10%.
[0018] In some embodiments, the plant starch is selected from pea starch and
corn starch, a
weight percentage of the pea starch in the initial materials is 10%-20%, and a
weight percentage
of the corn starch in the initial materials is 10%-20%.
[0019] In the above technical solution, pea starch, corn starch and potato
starch have high
biodegradability. Moreover, the combination of different starches can help to
improve the
detergency of the detergent tablet and replace more polyvinyl alcohol, so as
to improve the
biodegradability of the detergent tablet.
[0020] In some embodiments, the pea starch has a whiteness value of 89%-92.5%
and a moisture
content of 7%-9.3%; the potato starch has a whiteness value of 89.5%-93% and a
moisture content
of 11.5%-15%; and the corn starch has a whiteness value of 86%-90% and a
moisture content of
9%-10.5%.
[0021] In the above technical solution, pea starch, corn starch and potato
starch have respective
whiteness values and moisture contents, and their costs are different. By
considering the whiteness
values and moisture contents of different types of starches, and balancing the
effects of whiteness
values and moisture contents on the detergent tablet, the detergency of the
detergent tablet is
ensured. In addition, the stability of detergent tablet having different types
of starch mixed is
improved by combining the composition and performance differences among
different types of
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plant starches.
[0022] In some embodiments, the film-forming agent is maltodextrin, and a DE
value of the
maltodextrin is 10-20.
[0023] In the above technical solution, maltodextrin is derived from plants
and has good
biodegradability. Maltodextrin has strong viscosity after being dissolved, and
may further replace
part of polyvinyl alcohol taking advantage of its viscosity, which is
conducive to accelerating the
biodegradation of detergent tablet.
[0024] In some embodiments, the surfactant is one or more selected from a
group consisting of
sodium alkenyl sulfonate, coco-sulfate, fatty acid methyl ester sulfonate,
fatty acid methyl ester
.. ethoxy sulfonate, laureth polyether sulfate, alkyl polyglycoside, fatty
alcohol polyoxyethylene
ether, isomeric alcohol polyoxyethylene ether, modified oil ethoxylate,
rhamnolipid, sophorolipid
and sorbitan fatty acid ester.
[0025] In the above technical solution, the surfactant not only has high
washing ability, but also
has good biodegradability, which helps to obtain detergent tablet with good
biodegradability and
high detergency.
[0026] In some embodiments, the surfactant includes coco-sulfate and fatty
acid methyl ester
ethoxy sulfonate in a weight ratio of (3-4):1, and/or includes modified oil
ethoxylate and fatty
alcohol polyoxyethylene ether in a weight ratio of (1.5-2.5):1, and/or
includes rhamnolipid and
sophorolipid in a weight ratio of (1-2):1, and/or includes alkyl
polyglycoside.
[0027] In the above technical solution, the combination of coco-sulfate and
fatty acid methyl
ester ethoxy sulfonate is conducive to improving the emulsifying ability of
anionic surfactant in
the detergent tablet system, thereby improving the washing ability of the
detergent tablet.
Moreover, the combination of the two is conducive to improving the
biodegradability of coco-
sulfate and the biodegradability of the detergent tablet system.
[0028] Modified oil ethoxylate is selected from modified coconut oil
ethoxylate (SOE-C),
modified palm oil ethoxylate (SOE-P), modified palm kernel oil ethoxylate (SOE-
N), preferably,
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modified coconut oil ethoxylate (SOE-C). The combination of modified oil
ethoxylate and fatty
alcohol polyoxy ethylene ether not only has high biodegradation rate, but also
reduces the cloud
point of fatty alcohol polyoxyethylene ether. The wettability and permeability
of the initial
material components in the detergent tablet system are improved, and at the
same time, the washing
performance of the detergent tablet in cold water is improved, which is
conducive to better wetting
and dissolution of the detergent tablet in water, and is conducive to
improving the washing ability.
In addition, the combination of modified oil ethoxylate and fatty alcohol poly
oxyethylene ether is
conducive to dispersing a large amount of plant starch during washing, better
assisting washing,
and achieving the effect of no residue of detergent tablet in the fast washing
mode.
[0029] The combination of rhamnolipid and sophorolipid not only has the
detergency of
surfactant, but also helps to accelerate the decomposition rate of polyvinyl
alcohol molecules and
improve the biodegradation rate.
[0030] Alkyl polyglycoside has low surface tension, no cloud point, strong
wetting ability,
strong detergency, rich and delicate foam, strong compatibility, no irritation
to skin, rapid and
complete biodegradation, and is non-toxic and harmless, so it can be
combination with various
types of surfactants.
[0031] In some embodiments, the solubilizer is one or more selected from a
group consisting of
glycerol, propylene glycol, sorbitol and butanediol.
[0032] In the above technical solution, the solubilizer can dissolve a
plurality of organic and
inorganic substances, has a certain dissolving effect on common stains, and
can cooperate with
surfactants to quickly remove stains.
[0033] In some embodiments, the solubilizer includes glycerol and propylene
glycol in a weight
ratio of (1-2):1.
[0034] In the above technical solution, the above combination is helpful to
improve the
biodegradation rate of the solubilizer.
[0035] In some embodiments, the bio-enzyme formulation is one or more selected
from a group
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consisting of protease, cellulase, amylase, pectinase, mannanase and lipase.
[0036] In the above technical solution, the above-mentioned bio-enzyme
foimulation has strong
decomposition ability and has good washing effect on stains such as
bloodstains, sweat stains,
milk stains, grease and starch that are difficult to clean in daily life.
[0037] In some embodiments, the water softener is one or more selected from a
group consisting
of tetrasodium glutamate acid di acetate, sodium citrate, citric acid, sodium
iminodisuccinate,
polyaspartic acid and sodium polyepoxysuccinate.
[0038] In the above technical solution, the water softener can chelate the
divalent metal ions in
tap-water, such as calcium ions and magnesium ions, and has good effect on
assisting the
detergency of the detergent.
[0039] In some embodiments, the environmental friendly detergent tablet is
made of the
following initial materials by weight percentage: 4%-17% of polyvinyl alcohol,
1-5% of dextrin,
10%-20% of pea starch, 10%-20% of corn starch, 0.05%-0.5% of protease, 0.05%-
0.5% of
cellulase, 0-0.3% of amylase, 0-0.3% of pectinase, 0.5%-3% of sodium citrate,
0.1-2% of citric
acid, 0-2% of tetrasodium glutamate acid diacetate, 3.2%-6% of glycerol, 3.2%-
6% of propylene
glycol, 0-1% of butanediol, 24.5-36% of sodium coco-sulfate, 0-3.6% of
modified oil ethoxylate,
1.5%-3.6% of fatty alcohol polyoxyethylene ether, 4.5%-8.1% of fatty acid
methyl ester ethoxy
sulfonate, 1.5-2% of alkyl polyglycoside, 1.1%-2.2% of sophorolipid and 2.2%-
3.4% of
rhamnolipid.
[0040] In some embodiments, the initial materials of the environmental
friendly detergent tablet
also include plant essence.
[0041] Plant essence is one or more selected from a group consisting of
jasmine essence, lemon
essence, citrus essence, lavender essence and grapefruit essence.
[0042] In the above technical solution, plant essence is added to make the
washed fabric have a
fresh and pleasant feeling.
100431 In a second aspect, the present application provides a preparation
method for an
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environmental friendly detergent tablet, which adopts the following technical
solution:
a preparation method for an environmental friendly detergent tablet including
the
following steps:
mixing water, polyvinyl alcohol and a film-forming agent under stirring,
heating to 80
C-90 C, and continuing stirring to obtain an initial mixed slurry;
adding a solubilizer into the initial mixed slurry under stirring, then adding
a surfactant
under stirring, then adding a plant starch under stirring, to obtain a mixed
materials;
drying the mixed materials, coating with the bio-enzyme formulation, molding,
and
slicing to obtain the environmental friendly detergent tablet.
[0044] In the above technical solution, a stable initial mixed slurry is
formed first, so that the
system of detergent tablet is initially formed, then the solubilizer and
surfactant are added, and
finally the plant starch is added, to avoid a gelatinization of the plant
starch due to long reaction
time under high temperature environment, resulting in instability of the mixed
materials.
[0045] The bio-enzyme formulation is attached to the surface of the detergent
tablet by coating.
The amount of the bio-enzyme formulation is small, which further reduces the
impact on the
detergent tablet without plastic packaging, and also improves the detergency
of the detergent tablet.
[0046] In a third aspect, the present application provides a tableting
equipment for the
environmental friendly detergent tablet, which adopts the following technical
solution:
a tableting equipment for the environmental friendly detergent tablet
including a frame,
the frame is provided with a molding device configured for drying the mixed
materials into a solid
semi-finished product, a coating device configured for coating with the bio-
enzyme formulation,
an advancing device configured for moving the solid semi-finished product
forward, an adjusting
device configured for controlling the conveying state of the solid semi-
finished product, and a
slicing device configured for cutting the solid semi-finished product to
obtain a finished product;
the slicing device includes a transverse cutting mechanism, a vertical cutting
mechanism, a feeding
conveyor belt rotationally installed on the frame and configured to support
the solid semi-finished
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product, and a downward pressing and feeding mechanism configured for pressing
the solid semi-
finished product and moving the solid semi-finished product.
[0047] In the above technical solution, the mixed materials is formed into
solid semi-finished
product under the action of the molding device, the advancing device and the
adjusting device;
then the solid semi-finished product are cut into finished products by the
slicing device. The solid
semi-finished product are conveyed forward under the pressing action of the
feeding conveyor belt
and the downward pressing and feeding mechanism. The adjusting device controls
the change of
the conveying state to realize the intermittent advance of the solid semi-
finished product, so that
the transverse cutting of the solid semi-finished product is not disturbed by
the conveying state of
the solid semi-finished product, and the quality of the detergent tablet is
ensured and the efficiency
is improved.
[0048] In some embodiments, the adjusting device includes a first guide roller
and a second
guide roller rotatably installed on the frame, an adjusting rod rotatably
installed on the frame, and
an adjusting roller rotatably installed on the adjusting rod. The solid semi-
finished product is
wound around the first guide roller, the adjusting roller, and the second
guide roller in sequence in
the conveying direction; the frame is provided with an angle sensor configured
for obtaining a
rotation angle of the adjusting rod, and the angle sensor is connected in
communication with a
controller for controlling the operation of the downward pressing and feeding
mechanism.
[0049] In the above technical solution, with the continuous advancing of the
solid semi-finished
.. product passing through the advancing device, there are more solid semi-
finished product in the
adjusting device; the tension force applied by the solid semi-finished product
to the adjusting roller
is reduced, and the adjusting roller swings downward under its gravity; at the
same time, the
adjusting rod is rotated; when the adjusting rod is rotated to a predetermined
angle, the angle sensor
is triggered and the downward pressing and feeding mechanism is controlled by
the controller to
operate; the downward pressing and feeding mechanism drives the solid semi-
finished product to
move forward. At this time, there are fewer solid semi-finished product in the
regulating device,
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the tension force applied by the solid semi-finished product to the adjusting
roller is increased, and
the adjusting roller is tensioned and swings upward. At the same time, the
regulating rod is rotated
to a predetermined angle, and the angle sensor is again triggered to stop the
operation of the
downward pressing and feeding mechanism, so as to realize the intermittent
advance of the solid
semi-finished product.
[0050] In some embodiments, the frame is provided with an embossing roller,
and the embossing
roller and the first guide roller jointly extrude the solid semi-finished
product.
[0051] In some embodiments, the downward pressing and feeding mechanism
includes a
pressing plate, a lifting assembly for driving the pressing plate to be close
to or away from the
solid semi-finished product, and a translation assembly for driving the
pressing plate to move
forward or backward in the conveying direction of the solid semi-finished
product. The controller
is configured to control the operation of the lifting assembly and the
translation assembly.
[0052] In the above technical solution, the rise and fall of the pressing
plate can realize the
pressing state of the solid semi-finished product. Under the pressing state,
the horizontal
movement of the pressing plate can realize the advancing of the solid semi-
finished product.
[0053] In some embodiments, the lifting assembly includes a lifting cylinder
connected to the
frame, and an output end of the lifting cylinder is connected to the pressing
plate.
[0054] In some embodiments, the translation assembly includes a mounting plate
configured to
be connected to the pressing plate, a rack connected to the mounting plate, a
moving motor
installed on the rack, and a gear provided on an output shaft of the moving
motor; the gear meshes
with the rack.
[0055] In some embodiments, the translation assembly includes a mounting plate
configured to
be connected to the pressing plate, and a moving cylinder installed on the
frame; and an output
end of the moving cylinder is connected to the mounting plate.
[0056] In some embodiments, the molding device includes a trough configured
for containing
the mixed materials, a drying-forming roller rotatably installed on the frame
and provided above
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the trough, and a forming driver for driving the drying-forming roller to
rotate; the mixed materials
is attached to the drying-forming roller and forms a solid semi-finished
product.
[0057] In the above technical solution, the mixed materials is attached to the
drying-forming
roller, and the heat of the drying-forming roller volatilizes the moisture of
the mixed materials and
dries it into solid semi-finished product.
[0058] In some embodiments, the advancing device includes an advancing roller
rotatably
installed on the frame and an advancing driver for driving the advancing
roller to rotate; the solid
semi-finished product is wound around the advancing roller after leaving the
drying-forming roller.
[0059] In the above technical solution, the advancing roller rotates to drive
the solid semi-
finished product to move forward, leave the drying-forming roller and go to
the next device.
[0060] In some embodiments, the vertical cutting mechanism includes a fixed
base installed on
the frame and vertical cutting blades connected to the fixed base; and the
vertical cutting blades
are arranged at intervals in a direction perpendicular to the conveying
direction of the solid semi-
finished product.
[0061] In some embodiments, the transverse cutting mechanism includes a
cutting saw and a
moving component configured for driving the cutting saw to move in a direction
perpendicular to
the conveying direction of the solid semi-finished product.
[0062] In some embodiments, the tableting equipment is also provided with an
discharging
device, and the discharging device is arranged at a delivery side of the
slicing device. The
discharging device includes a discharging conveyor belt for receiving and
conveying the finished
products out, an detection photoelectric switch configured for sensing the
position of the finished
products, a visual detector configured for detecting products, and a sorting
mechanism configured
for sorting good and bad products; the detection photoelectric switch is
connected in
communication with the visual detector; and the visual detector is connected
in communication
with a controller configured for controlling the sorting mechanism.
[0063] In some embodiments, the sorting mechanism includes a sorting plate, a
sorting motor
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configured for driving the rotation of the sorting plate, a sorting cylinder
installed on the sorting
plate, a sorting sucker connected to the sorting cylinder, and a good product
conveyor belt arranged
at an end of the discharging conveyor belt. The sorting motor, the sorting
cylinder, and the sorting
sucker are connected in communication with the visual detector.
[0064] In the above technical solution, the discharging device can transport
the finished products
to the next process, visually inspect the finished products, sort out the good
and bad products
according to the appearance of the finished products, and make the good
products flow into the
next process.
[0065] In some embodiments, a transfer mechanism is provided between the
slicing device and
the discharging device, and the transfer mechanism includes a transfer plate
moving between the
slicing device and the discharging device, a first transfer cylinder arranged
on the frame, a transfer
base arranged on an output end of the first transfer cylinder, and a second
transfer cylinder arranged
on the transfer base; an output end of the second transfer cylinder is
connected to the transfer plate;
the output directions of the first transfer cylinder and the second transfer
cylinder are perpendicular
to each other; and the transfer plate is provided with a transfer sucker.
[0066] In the above technical solution, the transfer sucker sucks up the
finished products, and
the first transfer cylinder and the second transfer cylinder drive the
finished products to leave the
slicing device and enter the discharging device, so as to realize the transfer
of the finished products.
[0067] To sum up, the present application has the following beneficial
effects:
1. In the present application, high molecular weight polyvinyl alcohol and
plant starch are
combined to obtain a detergent tablet with good biodegradability and high
detergency; taking
advantage of the high molecular weight characteristics of polyvinyl alcohol,
the viscosity of the
detergent tablet is increased, which helps the degradable surfactant be stably
exist in the detergent
tablet. Moreover, the exist of high molecular weight polyvinyl alcohol
obviously improves the
compatibility of the plant starch in the detergent tablet system, so more
plant starch with assisting
washing function can be added to the detergent tablet system. Therefore, the
plant starch can not
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only improve the detergency of the detergent tablet, but also replace part of
polyvinyl alcohol,
thereby reducing the amount of polyvinyl alcohol. In addition, the plant
starch itself is easy to
degrade, so the biodegradability of the detergent tablet is greatly improved.
[0068] 2. In the present application, plant starch with specific whiteness
value and moisture
content is used, and different kinds of plant starch are combined, so that the
detergent tablet with
not only good detergency, but also good stability is obtained.
BRIEF DESCRIPTION OF THE DRAWINGS
[0069] FIG. 1 is a tri-dimensional structural diagram according to Example 1
of the present
application.
[0070] FIG. 2 is a tri-dimensional structural diagram of the molding device,
the advancing
device and the adjusting device according to Example 1 of the present
application.
[0071] FIG. 3 is a tri-dimensional structural diagram of the molding device,
the advancing
device, the adjusting device and the slicing device according to Example 1 of
the present
application.
[0072] FIG. 4 is a tri-dimensional structural diagram of a slicing device and
an discharging
device according to Example 1 of the present application.
[0073] FIG. 5 is a tri-dimensional structural diagram of an discharging device
according to
Example 1 of the present application.
[0074] Description of reference numbers: 1. molding device; 11. trough; 12.
drying-forming
roller; 2. advancing device; 21. advancing roller; 22. advancing driver; 3.
adjusting device; 31.
first guide roller; 32. second guide roller; 33. adjusting rod; 34. adjusting
roller; 35. embossing
roller; 36. angle sensor; 4. slicing device; 41. vertical cutting mechanism;
411. fixed base; 412.
vertical cutting blade; 42. transverse cutting mechanism; 421. cutting saw;
422. linear module; 43.
downward pressing and feeding mechanism; 431. pressing plate; 432. lifting
cylinder; 433.
mounting plate; 434. rack; 435. gear; 436. translation motor; 437. limit base;
44. feeding conveyor
belt; 5. discharging device; 51. discharging conveyor belt; 52. incoming
material detection
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photoelectric switch; 53. visual detector; 54. sorting mechanism; 541. sorting
plate; 542. sorting
motor; 543. sorting cylinder; 544. sorting sucker; 545. good product conveyor
belt; 546. defective
product placement port; 6. transfer mechanism; 61. transfer plate; 62. first
transfer cylinder; 63.
transfer base; 64. second transfer cylinder; 65. transfer sucker; 66.
positioning base; 7. first frame;
71. second frame; 72. third frame; 73. fourth frame; 8. coating device; 81.
enzyme formulation
tank; 82. first coating roller; 83. second coating roller.
DETAILED DESCRIPTION
[0075] The present application is further described in detail below in
combination with the
Examples.
Examples
[0076] Example 1
An environmental friendly detergent tablet included the following initial
materials by
weight percentage:
polyvinyl alcohol 4kg; film-forming agent 3kg; surfactant 41.5kg; plant starch
38kg;
solubilizer 12kg; bio-enzyme formulation 0.5kg; and water softener lkg.
[0077] Specifically, the film-forming agent was maltodextrin; the surfactant
was sodium coco-
sulfate; the plant starch was pea starch; the solubilizer was glycerol and
propylene glycol, in
particular, glycerol 6kg and propylene glycol 6kg; the bio-enzyme formulation
was protease and
cellulase, in particular, protease 0.25kg and cellulase 0.25kg; and the water
softener was
tetrasodium glutamate acid diacetate, sodium citrate and citric acid, in
particular, tetrasodium
glutamate acid diacetate 0.4kg, sodium citrate 0.5kg, citric acid 0.1kg.
[0078] The polyvinyl alcohol had an average polymerization degree of 1700 and
an average
molecular weight of 84000 Da.
[0079] A DE value of the maltodextrin was 10.
[0080] The pea starch had an whiteness value of 89%, and a moisture content of
pea starch of
7%.
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[0081] The protease had an enzyme activity content of 100 PRMU-U/g; the
cellulase had an
enzyme activity content of 5000 ECU/g; and the protease and cellulase had a
water content of 50%.
[0082] A preparation method for the environmental friendly detergent tablet
includes the
following steps: adding 50kg water, polyvinyl alcohol and a film-forming agent
into a stirring tank,
mixing for 5min under stirring, then heating to 80 C, and continuing stirring
for 30min to obtain
an initial mixed slurry;
[0083] adding a solubilizer into the initial mixed slurry under stirring for
10min, then adding the
water softener under stirring, then adding a surfactant under stirring for
10min, then adding a plant
starch under stirring for 10min to obtain the mixed materials;
[0084] drying the mixed materials in a tableting equipment, molding, slicing,
and coating with
the bio-enzyme formulation to obtain the environmental friendly detergent
tablet.
[0085] Example 2
An environmental friendly detergent tablet included the following initial
materials by
weight percentage:
polyvinyl alcohol 10kg; film-forming agent 5kg; surfactant 43kg; plant starch
30kg;
solubilizer 6.4kg; bio-enzyme formulation 0.6kg; water softener 5kg.
[0086] Specifically, the film-forming agent was maltodextrin; the surfactant
was sodium coco-
sulfate; fatty acid methyl ester ethoxy sodium sulfonate and alkyl
polyglycoside, in particular,
sodium coco-sulfate 36kg, fatty acid methyl ester ethoxy sodium sulfonate 5kg
and alkyl
polyglycoside 2kg; the plant starch was corn starch; the solubilizer was
glycerol and propylene
glycol, in particular, glycerol 4.3kg and propylene glycol 2.1kg; the bio-
enzyme formulation was
amylase and pectinase, in particular, amylase 0.3kg and pectinase 0.3kg; and
the water softener
was sodium citrate and citric acid, in particular, sodium citrate 3kg, citric
acid 2kg.
[0087] The polyvinyl alcohol had an average polymerization degree of 2700 and
an average
molecular weight of 130000 Da.
[0088] A DE value of the maltodextrin was 20.
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
[0089] The amylase had an enzyme activity content of 140000u/mL, the pectinase
had an
enzyme activity content of 100PTF/mg, and the pectinase had a water content of
50%.
[0090] The fatty acid methyl ester ethoxy sodium sulfonate had a carbon number
of 16-18.
[0091] The alkyl glycoside had a carbon number of 8-14.
[0092] The corn starch had a whiteness value of 86%, and a moisture content of
9%.
[0093] a preparation method for the environmental friendly detergent tablet
included the
following steps:
adding 125kg water, polyvinyl alcohol and a film-foiiiiing agent into a
stirring tank,
stifling for 2min, then heating to 90 C, and continuing stirring for 20min to
obtain an initial mixed
shiny;
[0094] adding a solubilizer into the initial mixed slurry under stirring for
5min, then adding a
surfactant under stirring for 5min, then adding a plant starch under stirring
for 5min to obtain the
mixed materials;
[0095] drying the mixed materials in a tableting equipment, molding, slicing,
and coating with
the bio-enzyme formulation to obtain the environmental friendly detergent
tablet.
[0096] Example 3
The difference between this Example and Example 2 was that the composition and
proportion of initial materials was different.
[0097] an environmental friendly detergent tablet included the following
initial materials by
weight percentage:
polyvinyl alcohol 17kg; film-forming agent 4kg; surfactant 50kg; plant starch
20kg;
solubilizer lkg; bio-enzyme formulation lkg; water softener 7kg.
[0098] Specifically, the film-forming agent was maltodextrin; the surfactant
was sodium coco-
sulfate, fatty alcohol polyoxyethylene ether and alkyl polyglycoside, in
particular, sodium coco-
sulfate 44kg, fatty alcohol polyoxy ethylene ether 4kg and alkyl polyglycoside
2kg; the plant starch
was potato starch; the solubilizer was butanediol; the bio-enzyme formulation
was protease and
16
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Date Regue/Date Received 2023-05-31
cellulase, in particular, protease 0.5kg and cellulase 0.5kg; and the water
softener was tetrasodium
glutamate acid diacetate, sodium citrate and citric acid, in particular,
tetrasodium glutamate acid
diacetate 2kg, sodium citrate 3kg, citric acid 2kg.
[0099] The polyvinyl alcohol had an average polymerization degree of 2300 and
an average
molecular weight of 111000 Da.
[00100] A DE value of the maltodextrin was 20.
[00101] The protease had an enzyme activity content of 100 PRMU-U/g; the
cellulase had an
enzyme activity content of 5000 ECU/g; and the protease and cellulase had a
water content of 50%.
[00102] The fatty alcohol polyoxyethylene ether had an EO value of 9.
[00103] The alkyl glycosides had a carbon number of 8-14.
[00104] The potato starch had a whiteness value of 89.5%, and a moisture
content of 11.5%.
[00105] In the preparation method for the environmental friendly detergent
tablet, 212kg of water
was added to the stirring tank.
[00106] Example 4
The difference between this Example and Example 2 was that the composition and
proportion of initial materials were different.
[00107] An environmental friendly detergent tablet included the following
initial materials by
weight percentage:
polyvinyl alcohol 14kg; film-forming agent lkg; surfactant 20kg; plant starch
50kg;
solubilizer 8.9kg; bio-enzyme foimulation 0.1kg; water softener 6kg.
[00108] Specifically, the film-forming agent was maltodextrin; the surfactant
was sodium coco-
sulfate, rhamnolipid, sophorolipid and alkyl polyglycoside, in particular,
sodium coco-sulfate
10kg, rhamnolipid 4kg, sophorolipid 4kg and alkyl polyglycoside 2kg; the plant
starch was pea
starch, corn starch and potato starch, in particular, pea starch 20kg, corn
starch 20kg and potato
starch 10kg; the solubilizer was butanediol; the bio-enzyme formulation was
protease and cellulase,
in particular, protease 0.05kg and cellulase 0.05kg; and the water softener
was tetrasodium
17
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Date Regue/Date Received 2023-05-31
glutamate acid diacetate, sodium citrate and citric acid, in particular,
tetrasodium glutamate acid
diacetate lkg, sodium citrate 3kg, and citric acid 2kg.
[00109] The polyvinyl alcohol had an average polymerization degree of 2300 and
an average
molecular weight of 111000 Da.
[00110] A DE value of the maltodextrin was 20.
[00111] The protease had an enzyme activity content of 100 PRMU-U/g; the
cellulase had an
enzyme activity content of 5000ECU/g; and the protease and cellulase had a
water content of 50%.
[00112] The alkyl glycoside had a carbon number of 8-14.
[00113] The pea starch had an whiteness value of 89% and a moisture content of
7%; the corn
starch had a whiteness value of 86% and a moisture content of 9%; and the
potato starch had a
whiteness value of 93% and a moisture content of 15%.
[00114] In the preparation method for the environmental friendly detergent
tablet, 140kg of water
was added to the stirring tank.
[00115] Example 5
The difference between this Example and Example 2 was that the composition and
proportion of initial materials were different.
[00116] An environmental friendly detergent tablet included the following
initial materials by
weight percentage:
polyvinyl alcohol 10kg; film-forming agent 5kg; surfactant 33kg; plant starch
40kg;
solubilizer 6.4kg; bio-enzyme foHnulation 0.6kg; water softener 5kg.
[00117] Specifically, the film-forming agent was maltodextrin; the surfactant
was sodium coco-
sulfate, fatty acid methyl ester ethoxy sodium sulfonate and alkyl
polyglycoside, in particular,
sodium coco-sulfate 27.5kg, fatty acid methyl ester ethoxy sodium sulfonate
4kg and alkyl
polyglycoside 1.5kg; the plant starch was pea starch and corn starch, in
particular, pea starch 20kg
and corn starch 20kg; the solubilizer was glycerol and propylene glycol, in
particular, glycerol
3.2kg and propylene glycol 3.2kg; the bio-enzyme formulation was protease and
cellulase, in
18
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Date Regue/Date Received 2023-05-31
particular, protease 0.3kg and cellulase 0.3kg; and the water softener was
sodium citrate and citric
acid, in particular, sodium citrate 3kg, citric acid 2kg.
[00118] The polyvinyl alcohol had an average polymerization degree of 2500 and
an average
molecular weight of 124000 Da.
[00119] A DE value of the maltodextrin was 20.
[00120] The protease had an enzyme activity content of 100 PRMU-U/g; the
cellulase had an
enzyme activity content of 5000ECU/g; and the protease and cellulase had a
water content of 50%.
[00121] The fatty acid methyl ester ethoxy sodium sulfonate had a carbon
number of 16-18.
[00122] The alkyl glycoside had an carbon number of 8-14.
[00123] The pea starch had a whiteness value of 89% and a moisture content of
7%; and the corn
starch had a whiteness value of 86% and a moisture content of 9%.
[00124] Examples 6 and 7
The difference between Examples 6 and 7 and Example 5 was that the proportions
of
polyvinyl alcohol, surfactant, plant starch and sodium coco-sulfate are
different, as shown in Table
1.
[00125] Table 1
Surfactant (kg) Plant
starch (kg)
Polyvinyl Sodium Fatty acid methyl
Alkyl Pea Corn
alcohol (kg) coco- ester sodium ethoxy
poly glycoside starch
starch
sulfate sulfonate
Example
10 27.5 4 1.5 20 20
5
Example
10 36 5 2 20 10
6
Example
14 41 5 2 10 11
7
Examples 8 to 14
The difference between Examples 8 to 14 and Example 6 was that the types of
plant starch
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were different, as shown in Table 2.
[00126] Table 2
Whiteness value Moisture content
Starch types Starch dosage (kg)
(%) (%)
Pea starch 20 89 7
Example 6
Corn starch 10 86 9
Example 8 Potato starch 30 93 15
Example 9 Sweet potato starch 30 84 11A
Example 10 Pea starch 30 89 7
Example 11 Corn starch 30 86 9
Sweet potato starch 20 84 11A
Example 12
Corn starch 10 86 9
Pea starch 20 89 7
Example 13
Potato starch 10 93 15
Pea starch 20 92.5 9.3
Example 14
Corn starch 10 90 10.5
Examples 15 to 18
The differences between Examples 15 to 18 and Example 6 were that the
composition
and proportion of surfactants were different, as shown in Table 3.
[00127] Table 3
Surfactant (kg)
Sodium Fatty acid methyl Modified Fatty alcohol Alkyl
Rhamno Sophor
coco- ester ethoxy oil polyoxyethylene o. . p
lygly
lipid olipid
sulfate sodium sulfonate ethoxylate ether coside
Example 6 36 5 0 0 0 0 2
Example 15 34 5 0 0 1 1 2
Example 16 24.5 4.5 3.6 3.6 3.4 1.4 2
Example 17 24.5 6.1 3.6 2.4 2.2 2.2 2
Example 18 24.5 8.1 3.6 1.5 2.2 1.1 2
The fatty acid methyl ester ethoxy sodium sulfonate had a carbon number of 16-
18.
[00128] The fatty alcohol polyoxyethylene ether had an EO value of 9.
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
[00129] The modified oil ethoxylate was SOE-C-60. The alkyl glycoside had a
carbon number of
8-14.
[00130] Examples 19
This Example was different from Example 17 in that the initial material also
contains
other additives.
[00131] Specifically, an environmental friendly detergent tablet included the
following initial
materials by weight percentage:
polyvinyl alcohol 10kg; film-forming agent 5kg; surfactant 43kg; plant starch
30kg;
solubilizer 6.4kg; bio-enzyme formulation 0.6kg; water softener 5kg; and other
additives lkg.
[00132] Specifically, other additives were lemon essence. In the preparation
method, lemon
essence and plant starch were added at the same time.
[00133] Examples 20
This Example was different from Example 19 in that the addition amount of
other
additives was 0.1 kg.
[00134] Comparative example 1
This Comparative example was different from Example 5 in that the plant starch
was
replaced by same amount of polyvinyl alcohol. That is, the amount of polyvinyl
alcohol was 40
kg, and the amount of plant starch was 0.
[00135] Comparative example 2
This Comparative example was different from Example 5 in that part of the
plant starch
was replaced by same amount of polyvinyl alcohol. Specifically, the amount of
polyvinyl alcohol
was 2 kg, and the amount of plant starch was 38kg.
[00136] Comparative example 3
This Comparative example was different from Example 5 in that the polyvinyl
alcohol
had an average polymerization degree of 1200 and an average molecular weight
of 64000 Da.
[00137] Comparative example 4
21
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Date Regue/Date Received 2023-05-31
This Comparative example was different from Example 5 in that the polyvinyl
alcohol
had an average polymerization degree of 3000 and an average molecular weight
of 146000 Da.
[00138] Comparative example 5
This Comparative example was different from Example 5 in that the film-forming
agent
was replaced by same amount of polyvinyl alcohol. That is, the amount of
polyvinyl alcohol was
kg, and the amount of film-founing agent was 0.
[00139] Performance test
The detergent tablet of each Example and Comparative example of the present
application
were tested according to the following test methods and standards.
10 [00140] The whiteness value was determined by "Starch-Determination of
whiteness" (GB/T
22427.6-2008).
[00141] Biodegradation test was performed according to OECD 301B, then the 28
day
degradation rate of the detergent tablet was obtained.
[00142] Forming stability: the detergent tablet was placed in a test
environment with a
15 temperature of (25 2) C and a humidity of (40 5)% for 48h, then the
detergent tablet was
bendal by hand to align and overlap the two sides, and whether the detergent
tablet breaks was
observed.
[00143] Moisture resistance stability: two detergent tablet were stacked
together and were put in
a test environment with temperature of (25 2) C and humidity of (85 5)%
for 24h. Then two
detergent tablet were separated and observed whether there was adhesion
between the detergent
tablets. The adhesion phenomenon was divided into no adhesion, slight adhesion
and obvious
adhesion.
[00144] Moisture resistance stability: two detergent tablet were stacked
together and were put in
a test environment with temperature of (25 2) C and humidity of (85 5)%
for 48h. Then two
detergent tablet were separated and observed whether there was adhesion
between the detergent
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Date Regue/Date Received 2023-05-31
tablets. The adhesion phenomenon was divided into no adhesion, slight adhesion
and obvious
adhesion.
[00145] Detergency test: the test was performed according to GB/T 13174-2021
"determination
of detergency and cyclic of washing property for laundry detergents"; the test
pieces were JB-01
dirty cloth, JB-02 dirty cloth and JB-03 dirty cloth, and the decontamination
ratio Pi of the
detergent tablet was obtained. When Pi 1.0,
it was qualified, and < 1.0, it was unqualified.
[00146] Table 4
Degradat Forming 24h moisture 48h
moisture
ion rate stability resistance stability
resistance stability
_
Example Unbroke
64.2 Slight adhesion Obvious adhesion
1 n
Example Unbroke
63.3 Slight adhesion Slight adhesion
2 n
Example Unbroke
60.5 No adhesion Slight adhesion
3 n
Example Unbroke
62 No adhesion Slight adhesion
4 n
Example Unbroke
63.5 Slight adhesion Slight adhesion
5 n
Example Unbroke
63.2 No adhesion No adhesion
6 n
Example Unbroke
61.5 No adhesion No adhesion
7 n
Example Unbroke
63.3 Slight adhesion Slight adhesion
8 n
Example Unbroke
64 No adhesion Slight adhesion
9 n
,
Example Unbroke
61.5 Slight adhesion Obvious adhesion
n
Example Unbroke
62.6 Slight adhesion Slight adhesion
11 n
Example Unbroke
62.3 Slight adhesion Slight adhesion
12 n
Example 62.6 Unbroke Slight adhesion
Obvious adhesion
23
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Date Regue/Date Received 2023-05-31
13
Example Unbroke
63.6 No adhesion No adhesion
14
Example Unbroke
65.3 No adhesion No adhesion
Example Unbroke
63.9 No adhesion No adhesion
16
Example Unbroke
65.8 No adhesion No adhesion
17
Example Unbroke
65.5 No adhesion No adhesion
18
Example Unbroke
65.7 No adhesion No adhesion
19
Example Unbroke
65.8 No adhesion No adhesion
Compar
Unbroke
ative 24 No adhesion No adhesion
example 1
Compar
ative 64.3 Broken Obvious adhesion
Obvious adhesion
example 2
Compar
ative 61.7 Broken Slight adhesion
Obvious adhesion
example 3
Compar
Unbroke
ative 56.6 No adhesion No adhesion
example 4
Compar
ative 60.9 Broken Obvious adhesion
Obvious adhesion
example 5
Table 5
Decontamination ratio
JB-01 dirty JB-02 dirty JB-03 dirty
cloth cloth cloth
Example 1 1.10 3.75 1.45
Example 2 1.21 4.02 1.50
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Date Regue/Date Received 2023-05-31
Example 3 1.12 3.78 1.45
Example 4 1.15 3.78 1.48
Example 5 1.14 4.03 1.47
Example 6 1.18 4.12 1.51
Example 7 1.20 4.15 1.53
Example 8 1.23 4.22 1.54
Example 9 1.04 3.72 1.43
Example 10 1.14 4.00 1.45
Example 11 1.11 3.88 1.42
Example 12 1.17 4.00 1.47
Example 13 1.15 3.90 1.46
Example 14 1.20 4.05 1.55
Example 15 1.24 4.17 1.56
Example 16 1.27 4.29 1.59
Example 17 1.34 4.68 1.71
Example 18 1.37 4.71 1.73
Example 19 1.36 4.71 1.71
Example 20 1.37 4.74 1.74
Comparative
0.93 3.24 1.13
example 1
Comparative
1.05 3.75 1.46
example 2
Comparative
1.02 3.30 1.19
example 3
Comparative
0.98 3.30 1.15
example 4
Comparative
1.07 3.75 1.44
example 5
From Table 4 and Table 5, in Comparative example 1, a large amount of
polyvinyl alcohol was
used as the film-forming material without adding plant starch. It can be seen
from the test results
that the biodegradation rate of the detergent tablet is only 41%, which is
much lower than the
standard requirement of 60%, and it is difficult to meet the requirements of
environmental
protection. In Comparative example 2, a small amount of polyvinyl alcohol was
used as the film-
forming material and plant starch was added. It can be seen from the test
results that the
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
biodegradation rate of the detergent tablet reaches the standard, but the
overall stability of the
detergent tablet is low and the practicability is affected. In Example 6, an
appropriate amount of
polyvinyl alcohol was mixed with plant starch. It can be seen from the test
results that not only the
biodegradation rate of the detergent tablet exceeds 60%, but also the overall
stability is better and
the detergency is improved. In addition, by adjusting the proportion of the
initial materials of the
detergent tablet within the range of Examples 1 to 7, detergent tablets with
good comprehensive
performance are still obtained.
[00147] Compared with Comparative examples 3 to 4, in Example 6, polyvinyl
alcohol with
appropriate polymerization degree and molecular weight was selected, the
biodegradation rate and
overall stability of the detergent tablet are balanced better. In addition, it
was also found that when
the polymerization degree and molecular weight of polyvinyl alcohol is too
large, the dissolution
rate of the detergent tablet is low, and there is residue after washing.
Compared with Comparative
example 5, in Example 6, the addition of maltodextrin as a film-forming agent
significantly
improved the overall stability of the detergent tablet.
[00148] Compared with Example 5, in Example 6 and Example 7, the weight ratio
of the
polyvinyl alcohol to the plant starch was controlled as 1: (1.5-3), so that
the detergent tablet had
better detergency and moisture resistance stability.
[00149] Compared with Examples 8 to 13, in Examples 6 and 14, the plant starch
was
combination of pea starch and corn starch, so that the detergent tablet had
better overall stability;
the detergency and stability were well balanced; and the use effect of the
detergent tablet was
better.
[00150] Compared with Example 6, in Example 15, rhamnolipid and sophorolipid
were added,
and the biodegradation rate and detergency of the detergent tablet were both
improved; in
examples 16 to 20, the composition and proportion of the surfactant were
adjusted; it was found
that the detergency of detergent tablet could be well improved and the
biodegradation rate could
be further improved by the combination of coco-sulfate and fatty acid methyl
ester ethoxy sodium
26
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Date Regue/Date Received 2023-05-31
sulfonate, the combination of modified oil ethoxylate and fatty alcohol
polyoxyethylene ether, and
the combination of rhamnolipid and sophorolipid.
[00151] Example 1 of the present application also discloses a tableting
equipment for an
environmental friendly detergent tablet.
[00152] As shown in FIG.1, an tableting equipment for the environmental
friendly detergent
tablet includes a frame, a molding device 1, a coating device 8, an advancing
device 2, an adjusting
device 3, a slicing device 4, and an discharging device 5. The frame is
configured to support and
install the above devices. Specifically, the frame includes a first frame 7, a
second frame 71, a
third frame 72, and a fourth frame 73. The molding device 1 and the coating
device 8 are installed
on the first frame 7; the advancing device 2 and the adjusting device 3 are
installed on the second
frame 71; the slicing device 4 is installed on the third frame 72; and the
discharging device 5 is
installed on the fourth frame 73. The mixed materials passes through the
molding device 1, the
coating device 8, the advancing device 2, the adjusting device 3, the slicing
device 4, and the
discharging device 5 in sequence to obtain the finished product of the tablet.
[00153] As shown in FIG.2, the molding device 1 includes a trough 11, a drying-
forming roller
12, a feeding roller and a forming driver. The trough ills arranged in the
first frame 7. The trough
11 is configured to accommodate the mixed materials. The feeding roller is
rotatably installed on
the trough 11, and the surface of the feeding roller is in contact with the
mixed materials. The
drying-foiming roller 12 is rotatably installed to the first frame 7, and the
drying-forming roller 12
.. is arranged above the trough 11. The drying-forming roller 12 and the
feeding roller are coaxially
arranged with a gap between them. A heating device is provided inside the
drying-forming roller
12, or a heating device is connected outside the drying-forming roller 12. The
heating device may
be a device with heating function such as a heating rod or a steam heater, so
that the surface of the
drying-forming roller 12 has a certain temperature.
[00154] The forming driver is fixedly installed on the first frame 7. The
forming driver is in
transmission connection with the drying-forming roller 12 and the feeding
roller, and the forming
27
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driver is configured to drive the drying-forming roller 12 and the feeding
roller to rotate. In this
example, the forming driver is a combination of motor and gearbox. During the
rotation of the
feeding roller, the mixed materials is driven to leave the trough 11
continuously. Meanwhile, the
feeding roller drives the mixed materials to be coated on the surface of the
drying-forming roller
12. The heat on the surface of the drying-forming roller 12 makes the moisture
of the mixed
materials evaporate, forming a solid semi-finished product.
[00155] The coating device 8 includes an enzyme formulation tank 81, a first
coating roller 82, a
second coating roller 83, and an coating driver. The enzyme formulation tank
81 is fixedly
connected to the first frame 7. The enzyme formulation tank 81 is a square
box. The enzyme
foimulation tank 81 contains bio-enzyme formulation. The first coating roller
82 and the second
coating roller 83 are both rotatably connected to the first frame 7. The first
coating roller 82 is
arranged below the second coating roller 83. The first coating roller 82 is in
contact with the bio-
enzyme formulation; the first coating roller 82 is close to the second coating
roller 83; and the
second coating roller 83 is configured to coat the bio-enzyme formulation to
the solid semi-
finished product. The addition amount of the bio-enzyme formulation is
controlled by adjusting
the degree to which the first coating roller 82 enters the bio-enzyme
formulation tank 81 and the
distance between the first coating roller 82 and the second coating roller 83.
[00156] The coating device driver is in transmission connection with the first
coating roller 82
and the second coating roller 83. In this example, the coating device driver
is a combination of a
motor and a gearbox. The coating device driver drives the first coating roller
82 and the second
coating roller 83 to rotate, thereby driving the bio-enzyme formulation to
continuously leave the
enzyme formulation tank 81 and be attached to the surface of the first coating
roller 82. The first
coating roller 82 transfers the bio-enzyme formulation to the second coating
roller 83, and the
second coating roller 83 then applies the bio-enzyme formulation to the solid
semi-finished
product, so that the bio-enzyme formulation is attached to the detergent
tablet.
[00157] The advancing device 2 includes an advancing roller 21 and an
advancing driver 22. The
28
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advancing roller 21 is rotatably installed on the second frame 71; the
advancing driver 22 is fixedly
installed on the second frame 71; and the molding driver is in transmission
connection with the
advancing roller 21 and configured to drive the advancing roller 21 to rotate.
In this example, the
advancing driver 22 is a combination of a motor and a gearbox, and the
advancing roller 21 rotates
under the driving action of the advancing driving member 22. The solid semi-
finished product is
wound around the advancing roller 21 after leaving the drying-forming roller
12. The advancing
roller 21 generates a force for the forward movement of the solid semi-
finished product, so that
the solid semi-finished product enters the adjusting device 3.
[00158] The adjusting device 3 includes a first guide roller 31, a second
guide roller 32, an
adjusting rod 33, and an adjusting roller 34. The first guide roller 31, the
second guide roller 32,
and the adjusting rod 33 are all rotatably installed on the second frame 71.
Two adjusting rods 33
are provided. The adjusting roller 34 is rotatably installed between the two
adjusting rods 33. The
adjusting roller 34 is arranged between the first guide roller 31 and the
second guide roller 32, and
the installation height of the adjusting roller 34 is lower than the
installation height of the first
guide roller 31 and the second guide roller 32. The solid semi-finished
product is wound around
the first guide roller 31, the adjustment roller 34, and the second guide
roller 32 in sequence in the
conveying direction, and then enters the slicing device 4. An embossing roller
35 is rotatably
installed on the second frame 71. The embossing roller 35 is parallel to the
first guide roller 31. A
pattern is provided on the surface of the embossing roller 35. The embossing
roller 35 and the first
guide roller 31 jointly extrude the solid semi-finished product, and the
pattern can be printed on
the surface of the solid semi-finished product.
[00159] Specifically, the installation height of the second guide roller 32 is
lower than the
installation height of the first guide roller 31. Additionally, the adjustment
roller 34 can rotate
freely relative to the adjusting rod 33, and the adjusting rod 33 can rotate
freely relative to the
second frame 71. Therefore, when the solid semi-finished product is tensioned,
the adjusting rod
33 will deviate from the height direction and form an angle with the height
direction.
29
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[00160] In the present application, the slicing device 4 performs a cutting
mode combining
vertical cutting and transverse cutting on the solid semi-finished product. In
particular, transverse
cutting refers to cutting in the direction perpendicular to the conveying
direction of the solid semi-
finished product. In order to ensure that the forward conveying of the solid
semi-fmi shed product
will not affect the transverse cutting, the solid semi-finished product of the
present application
advances intematently in the slicing device 4, and the transverse cutting is
perfoimed only when
the solid semi-finished product stops advancing.
[00161] As shown in FIG.2 and FIG.3, in order to realize the above cutting
mode, the second
frame 71 is provided with an angle sensor 36. The angle sensor 36 may obtain
the rotation angle
of the adjusting rod 33. The angle sensor 36 is connected in communication
with a controller. In
particular, the controller is a PLC controller, which can control the
operation of the tableting
equipment, including the operation of the slicing device 4.
[00162] With the continuous advancing of the solid semi-finished product
passing through the
advancing device 2, there are more solid semi-finished product in the
adjusting device 3; the
tension force applied by the winding of the solid semi-finished product to the
adjusting roller 34
is reduced, and the adjusting rod 33 swings downward under its gravity. When
the adjusting rod
33 swings to a predetermined angle, the angle sensor 36 is triggered, and the
slicing device 4 is
controlled by the controller to operate, driving the solid semi-finished
product to be transported to
the slicing device 4. At this time, there are fewer solid semi-finished
product in the adjusting device
3, the tension force applied by the winding of the solid semi-finished product
to of the adjusting
roller 34 is increased, the regulating roller 34 is tensioned and the
regulating rod 33 swings upward;
the regulating rod 33 returns to a predetermined angle; and the angle sensor
36 is triggered again
to stop the operation of the slicing device 4, to control the conveying state
of the solid semi-
finished product, so as to realize the intermittent advance of the solid semi-
finished product, and
facilitate the transverse cutting of the solid semi-finished product.
[00163] The slicing device 4 includes a transverse cutting mechanism 42, a
vertical cutting
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
mechanism 41, a feeding conveyor belt 44 and a downward pressing and feeding
mechanism 43.
The feeding conveyor belt 44 is rotatably installed on the third frame 72. The
feeding conveyor
belt 44 does not have an external driving source, that is, the feeding
conveyor belt 44 cannot rotate
itself and the feeding conveyor belt 44 is configured to support the solid
semi-finished product.
[00164] The downward pressing and feeding mechanism 43 is configured to
realize the
intermittent advance of the solid semi-finished product. The downward pressing
and feeding
mechanism 43 includes a pressing plate 431, a lifting assembly and a
translation assembly. The
lifting assembly is configured to drive the pressing plate 431 to be close to
or away from the solid
semi-finished product in the height direction, and the translation assembly is
configured to drive
the pressing plate 431 to move forward or backward in the conveying direction
of the solid semi-
finished product.
[00165] In this example, the lifting assembly includes a lifting cylinder 432.
An output end of the
lifting cylinder 432 moves in the height direction, and the output end of the
lifting cylinder 432 is
fixedly connected to the pressing plate 431. When the lifting cylinder 432
operates, the pressing
plate 431 is pressed down, then the solid semi-finished product is pressed
between the feeding
conveyor belt 44 and the pressing plate 431, so that the feeding conveyor belt
44 and the pressing
plate 431 are relatively stationary. In other examples, the lifting assembly
may also be an motor-
driven push-rod, a gear 435 and rack 434 transmission structure, and a leading
screw and slide
block transmission structure.
[00166] In this example, the translation assembly includes a mounting plate
433, a rack 434, a
gear 435 and a translation motor 436. The third frame 72 is fixedly arranged
with a limit base 437.
The rack 434 is slidably connected to the limit base 437. The sliding
direction of the rack 434 is
parallel to the conveying direction of the feeding conveyor belt 44. The
translation motor 436 is
installed on the third frame 72. In particular, the motor is a servo motor.
The gear 435 is installed
on the output shaft of the translation motor 436. The gear 435 meshes with the
rack 434. The rack
434, the gear 435 and the translation motor 436 are symmetrically arranged on
both sides of the
31
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
third frame 72. Both ends of the mounting plate 433 are fixedly connected to
the two racks 434,
respectively, and the lifting cylinder 432 is installed on the mounting plate
433. When the
translation motor 436 operates, the gear 435 cooperates with the rack 434 to
drive the mounting
plate 433 to translate and drive the pressing plate 431 to translate, and
cooperates with the feeding
.. conveyor belt 44 and the pressing plate 431 to press the solid semi-
finished product, so that the
feeding conveyor belt 44 rotates and drives the solid semi-finished product to
be conveyed forward.
In other examples, the translation assembly may also be a cylinder, an motor-
driven push-rod and
a leading screw and slide block transmission structure. For example, a
translation cylinder is
provided on the third frame 72, the output end of the translation cylinder
moves in the conveying
direction of the solid semi-finished product, and the output end of the
translation cylinder is
connected to the mounting plate 433.
[00167] Under the cooperation of the lifting assembly and the translation
assembly, the pressing
plate 431 drives the solid semi-finished product to move forward for a certain
distance, and then
the pressing plate 431 rises and is translated to the original position under
the action of the lifting
.. assembly and the translation assembly, so as to carry out the next pressing
and feeding. The
controller is connected in communication with the lifting cylinder 432 and the
translation motor
436. The lifting cylinder 432 and the translation motor 436 are started or
stopped or change the
output direction according to the signal of the angle sensor 36, to realize
the intermittent advance
of the solid semi-finished product.
.. 1001681 The vertical cutting mechanism 41 is arranged on a side of the
downward pressing and
feeding mechanism 43 close to the adjusting device 3. The vertical cutting
mechanism 41 includes
a fixed base 411 and a vertical cutting blade 412. Both ends of the fixed base
411 are fixedly
connected to both sides of the third frame 72, respectively. A plurality of
vertical cutting blades
412 are provided. The vertical cutting blades 412 are fixed to the fixed base
411 at intervals in the
direction perpendicular to the conveying direction of the solid semi-finished
product. The solid
semi-finished product are in contact with the vertical cutting blade 412 when
being conveyed. The
32
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
interaction between the vertical blades 412 and the solid semi-finished
product realizes the vertical
cutting of the solid semi-finished product.
1001691 The transverse cutting mechanism 42 is arranged on a side of the
downward pressing and
feeding mechanism 43 away from the adjusting device 3. The transverse cutting
mechanism 42
includes a cutting saw 421 and a moving component. The cutting saw 421 can
rotate and cut solid
semi-finished product during the rotation. The moving component is configured
to drive the
cutting saw 421 to move in a direction perpendicular to the conveying
direction of the solid semi-
finished product, to realize the transverse cutting of the solid semi-finished
product, and make the
solid semi-finished product into a square finished product after vertical
cutting. In this example,
the moving component is a linear module 422. In other examples, the moving
component may also
be a rodless cylinder.
1001701 As shown in FIG.4, a transfer mechanism 6 is provided between the
slicing device 4 and
the discharging device 5. The transfer mechanism 6 includes a transfer plate
61, a first transfer
cylinder 62, a transfer base 63, and a second transfer cylinder 64. A
positioning base 66 is fixedly
installed on the fourth frame 73. The positioning base 66 is provided with a
sliding rail for sliding
connection of the transfer base 63. The first transfer cylinder 62 is
installed on the positioning base
66, and the output end of the first transfer cylinder 62 is connected to the
transfer base 63. The
output end of the first transfer cylinder 62 moves in the conveying direction
of the solid semi-
finished product; the second transfer cylinder 64 is fixedly installed to the
transfer seat 63; the
.. output end of the second transfer cylinder 64 is connected to the transfer
plate 61; and the output
end of the second transfer cylinder 64 moves in the height direction. The
output directions of the
first transfer cylinder 62 and the second transfer cylinder 64 are
perpendicular to each other. The
transfer plate 61 is provided with a transfer sucker 65, in particular, the
transfer sucker 65 is a
vacuum sucker. The transfer sucker 65 is activated to suck up the finished
product. The first
transfer cylinder 62 and the second transfer cylinder 64 drive the finished
product to leave the
slicing device 4 and enter the discharging device 5.
33
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
[00171] The discharging device 5 includes a discharging conveyor belt 51, an
incoming material
detection photoelectric switch 52, a visual detector 53 and a sorting
mechanism 54. The
discharging conveyor belt 51 is provided with an external drive source, and
the discharging
conveyor belt 51 can rotate. The discharging conveyor belt 51 supports the
finished products and
conveys them. The incoming material detection photoelectric switch 52 and the
visual detector 53
are both arranged at one end of the discharging conveyor belt 51 and connected
in communication.
The incoming material detection photoelectric switch 52 is connected in
communication with the
visual detector 53. When the finished product is transported to a position
where the incoming
material detection photoelectric switch 52 may be triggered, the visual
detector 53 takes pictures
of the finished product and detects whether the finished product is good or
defective.
[00172] As shown in FIG.5, the sorting mechanism 54 includes a sorting plate
541, a sorting
motor 542, a sorting cylinder 543, a sorting sucker 544, and a good product
conveyor belt 545.
The fourth frame 73 is provided with a defective product placement port 546
for dropping of the
defective products. In particular, the sorting motor 542 is a servo motor. The
sorting driver is
installed on the fourth frame 73. The sorting plate 541 is connected to the
output shaft of the sorting
motor 542. The sorting cylinder 543 is installed on the sorting plate 541. The
sorting sucker 544
is installed at the output end of the sorting cylinder 543. In particular, the
sorting sucker 544 is a
vacuum sucker. The sorting motor 542, the sorting cylinder 543, and the
sorting sucker 544 are all
connected in communication with the visual detector 531. The visual detector
53 is connected in
communication with the controller. The good product conveyor belt 545 is
arranged close to the
end of the discharging conveyor belt 51 and has a conveying direction
perpendicular to the
conveying direction of the discharging conveyor belt 51. When a defective
product is detected, the
defective product continues to be transported forward and falls into the
defective product
placement port 546. When a good product is detected, the sorting motor 542,
the sorting cylinder
543 and the sorting sucker 544 are started; the sorting cylinder 543 drives
the sorting plate 541 to
descend; the sorting sucker 544 sucks the good product; then the sorting
cylinder 543 drives the
34
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
sorting plate 541 to rise; the sorting motor 542 drives the sorting plate 541
to rotate, so that the
good product leaves the discharging conveyor belt 51 and enters above the good
product conveyor
belt 545; then the good product is put down; and the good product conveyor
belt 545 supports the
good product and conveys the good product to the next process.
[00173] Implementation principle of the tableting equipment:
The molding device 1 dries the mixed materials into solid semi-finished
product; the
advancing device 2 generates a force for moving the solid semi-finished
product; and then the
transverse cutting mechanism 42 and the vertical cutting mechanism 41 cut the
solid semi-finished
product into finished products. The regulating device 3 and the downward
pressing and feeding
mechanism 43 realize the intermittent advance of the solid semi-finished
product to complete the
tableting.
CPST Doc: 498691.1
Date Regue/Date Received 2023-05-31
